Started puntopagos module.

Added request dependency.
New changes.
Redirecting path to https.
Fixed object parsing before calling callback.

Exporting only payments now.
Styling for the new button.
Original stylus sheet.
Added all necessary routes.
Routing based on body parameteres to Stripe or PuntoPagos.
Added Spanish version of the site Payment Methods in Checkout.
Merge branch 'feat-puntopagos'